LM337SP

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LM337SP

IC REG LIN NEG ADJ 1.5A TO220

  • Fabricant
  • Mfr. Partie #LM337SP
  • Paquet TO-220
  • Fiche de données
  • En stock4853

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Spécifications

Package Tube
ProductStatus Active
OutputConfiguration Negative
OutputType Adjustable
NumberofRegulators 1
Voltage-Input(Max) 40V
Voltage-Output(Min/Fixed) -1.2V
Voltage-Output(Max) -37V
Current-Output 1.5A
PSRR 77dB ~ 60dB (120Hz)
ProtectionFeatures Over Current, Over Temperature
OperatingTemperature 0°C ~ 125°C
MountingType Through Hole
Package/Case TO-220-3

Vue d'ensemble

Description

The LM337SP is a negative voltage regulator integrated circuit (IC) used to maintain a constant output voltage level. This adjustable regulator can output voltages ranging from -1.2V to -37V, making it versatile for various applications. It's part of the LM337 series, which is widely used in electronic circuits for power management.
The LM337SP can deliver up to 1.5A of output current and offers features such as thermal regulation, current limiting, and safe area protection, which enhance its reliability and safety in circuit design. The IC is typically used in power supplies, battery chargers, and as part of dual power supply circuits.
The regulator requires only two external resistors to set the output voltage, which makes it easy to configure. It is often employed in situations where a stable and adjustable negative voltage is needed. The LM337SP is available in a variety of package options, commonly TO-220, which facilitates easy mounting and heat dissipation.
Overall, its flexibility and reliability make the LM337SP a popular choice for applications requiring precise negative voltage regulation.

Features

The LM337SP is a versatile and commonly used negative voltage regulator. It offers an adjustable output voltage range from -1.2V to -37V, making it suitable for a variety of applications requiring negative voltage regulation. The device is capable of delivering up to 1.5A of output current.
Key features include thermal regulation and current limiting, ensuring safe operation under extreme conditions and preventing damage due to excessive load or temperature. The LM337SP maintains a low output voltage ripple, which ensures stable DC output and reduces noise.
Moreover, it is characterized by a dropout voltage typically around 3V, meaning it requires at least this much difference between input and output voltages for proper regulation. It also features a typical line regulation of 0.01%/V and load regulation of 0.3%, ensuring consistent performance even with varying input voltages and loads.
The LM337SP comes in a TO-220 package, facilitating easy heat dissipation, and is widely used in power supplies and electronic circuits that need a reliable negative voltage source.

Package

The LM337SP is typically available in a TO-220 package. This package type features three leads and is designed for easy mounting and heat dissipation, commonly used for adjustable negative voltage regulators like the LM337. Always verify with the manufacturer's datasheet for the most accurate information.

Pinout

The LM337SP is a negative voltage regulator commonly used for voltage regulation in electronic circuits. It typically comes in a 3-pin package. The functions of each pin are as follows:
1. Input Pin: This is the pin where the unregulated negative input voltage is applied. The LM337SP regulates this input to maintain a stable output voltage.
2. Output Pin: The regulated negative voltage is output through this pin. It supplies a consistent voltage to the load connected to the regulator.
3. Adjust Pin: This pin is used to set the output voltage. By connecting resistors between this pin and the output, as well as between the adjust pin and ground, you can set the desired output voltage according to the required application.
The LM337SP can provide a variety of output voltages from -1.2V to -37V, depending on the external resistor configuration. It is widely used in power supply applications due to its ability to deliver consistent performance and flexibility in output voltage settings.

Manufacturer

The LM337SP is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is a global semiconductor company that designs and manufactures a wide range of electronic products, including analog, digital, and embedded processing components. TI is known for its innovation in the semiconductor industry, providing solutions for various sectors such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company is headquartered in Dallas, Texas, and has operations worldwide.

Application

The LM337SP is a versatile adjustable negative voltage regulator used in various applications. It is commonly used for power supply regulation in electronic devices, providing a stable output voltage adjustable from -1.2V to -37V. This makes it suitable for battery chargers, operational amplifier power supplies, and other circuits requiring a stable negative voltage. It is also used in telecommunications equipment and audio devices where precise voltage control is essential. Its compact size and reliable performance make it ideal for consumer electronics and industrial applications.

Equivalent

The LM337SP is a voltage regulator IC commonly used to provide adjustable negative voltage output. Equivalent products include the LM337, LM137, and similar adjustable negative voltage regulators like the L79xx series (e.g., L7912, L7915) from other manufacturers such as STMicroelectronics, ON Semiconductor, and Texas Instruments. Ensure that the equivalent has compatible ratings for voltage, current, and power dissipation. Always verify specifications from the datasheet to ensure compatibility with your application.

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UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

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EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

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